Don't think it would. It would say to clubs and players that if they think a decision is wrong they can scream in the referee's face as much as they like, after all Man City had the charges dropped against them because the referee was proven to be wrong.I’m the opposite would actually like to see it as it shows common sense and would be a good way to heighten respect down the pyramid.
And let's not forget here this was NOT an incorrect decision, Hooper didn't do anything incorrect in law or indeed make an incorrect decision. Advantage is at the discretion of the referee, think we all agree that he should have done so here but he has just switched off.